Distributed optimal contention window control for elastic traffic in single-cell wireless LANs

Submitted by crepric on Thu, 09/17/2009 - 17:10
TitleDistributed optimal contention window control for elastic traffic in single-cell wireless LANs
Publication Type Journal Articles
Year of Publication2007
AuthorsYang, Y., J. Wang, and R. Kravets
JournalIEEE/ACM Transactions on Networking
Volume15
Start Page1373
Issue6
Date Published12/2007
AbstractThis paper presents a theoretical study on distributed contention window control algorithms for achieving arbitrary bandwidth allocation policies and efficient channel utilization. By modeling different bandwidth allocation policies as an optimal contention window assignment problem, we design a general and fully distributed contention window control algorithm, called General Contention window Adaptation (GCA), and prove that it converges to the solution of the contention window assignment problem. By examining the stability of GCA, we identify the optimal stable point that maximizes channel utilization and provide solutions to control the stable point near the optimal point. Due to the generality of GCA, our work provides a theoretical foundation to analyze existing and design new contention window control algorithms.
URLhttp://portal.acm.org/citation.cfm?id=1373489
DOI10.1109/TNET.2007.896473
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